mirror of
https://github.com/mautrix/signal.git
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35db0abe8b
* Change most columns to `NOT NULL`, including primary keys (because SQLite). * Change columns only storing signal user IDs (portal receiver, message sender, user uuid) to use the `uuid` type instead of `TEXT`. * Drop chat ID from message table primary key. * Add part index to message table to replace timestamp hack for storing multiple parts of the same message. * Change query wrappers to use new QureyHelper struct in dbutil, and pass contexts and errors everywhere. As a part of changing the portal receiver from phone number to uuid, old portals whose receiver isn't logged in anymore may be discarded. The discarded portals will be stored in the lost_portals table for cleanup or recovery.
125 lines
4.2 KiB
Go
125 lines
4.2 KiB
Go
// mautrix-signal - A Matrix-signal puppeting bridge.
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// Copyright (C) 2023 Scott Weber, Tulir Asokan
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package database
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import (
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"context"
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"database/sql"
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"time"
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"go.mau.fi/util/dbutil"
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"maunium.net/go/mautrix/id"
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)
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const (
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getUnscheduledDisappearingMessagesForRoomQuery = `
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SELECT room_id, mxid, expiration_seconds, expiration_ts
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FROM disappearing_message WHERE expiration_ts IS NULL AND room_id = $1
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`
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getExpiredDisappearingMessagesQuery = `
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SELECT room_id, mxid, expiration_seconds, expiration_ts
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FROM disappearing_message WHERE expiration_ts IS NOT NULL AND expiration_ts <= $1
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`
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getNextDisappearingMessageQuery = `
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SELECT room_id, mxid, expiration_seconds, expiration_ts
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FROM disappearing_message WHERE expiration_ts IS NOT NULL ORDER BY expiration_ts ASC LIMIT 1
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`
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insertDisappearingMessageQuery = `
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INSERT INTO disappearing_message (room_id, mxid, expiration_seconds, expiration_ts) VALUES ($1, $2, $3, $4)
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`
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updateDisappearingMessageQuery = `
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UPDATE disappearing_message SET expiration_ts=$2 WHERE mxid=$1
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`
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deleteDisappearingMessageQuery = `
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DELETE FROM disappearing_message WHERE mxid=$1
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`
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)
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type DisappearingMessageQuery struct {
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*dbutil.QueryHelper[*DisappearingMessage]
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}
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type DisappearingMessage struct {
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qh *dbutil.QueryHelper[*DisappearingMessage]
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RoomID id.RoomID
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EventID id.EventID
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ExpireIn time.Duration
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ExpireAt time.Time
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}
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func newDisappearingMessage(qh *dbutil.QueryHelper[*DisappearingMessage]) *DisappearingMessage {
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return &DisappearingMessage{qh: qh}
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}
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func (dmq *DisappearingMessageQuery) NewWithValues(roomID id.RoomID, eventID id.EventID, expireIn time.Duration, expireAt time.Time) *DisappearingMessage {
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return &DisappearingMessage{
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qh: dmq.QueryHelper,
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RoomID: roomID,
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EventID: eventID,
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ExpireIn: expireIn,
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ExpireAt: expireAt,
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}
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}
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func (dmq *DisappearingMessageQuery) GetUnscheduledForRoom(ctx context.Context, roomID id.RoomID) ([]*DisappearingMessage, error) {
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return dmq.QueryMany(ctx, getUnscheduledDisappearingMessagesForRoomQuery, roomID)
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}
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func (dmq *DisappearingMessageQuery) GetExpiredMessages(ctx context.Context) ([]*DisappearingMessage, error) {
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return dmq.QueryMany(ctx, getExpiredDisappearingMessagesQuery, time.Now().Unix()+1)
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}
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func (dmq *DisappearingMessageQuery) GetNextScheduledMessage(ctx context.Context) (*DisappearingMessage, error) {
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return dmq.QueryOne(ctx, getNextDisappearingMessageQuery)
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}
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func (msg *DisappearingMessage) Scan(row dbutil.Scannable) (*DisappearingMessage, error) {
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var expireIn int64
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var expireAt sql.NullInt64
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err := row.Scan(&msg.RoomID, &msg.EventID, &expireIn, &expireAt)
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if err != nil {
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return nil, err
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}
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msg.ExpireIn = time.Duration(expireIn) * time.Second
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if expireAt.Valid {
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msg.ExpireAt = time.Unix(expireAt.Int64, 0)
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}
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return msg, nil
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}
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func (msg *DisappearingMessage) sqlVariables() []any {
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var expireAt sql.NullInt64
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if !msg.ExpireAt.IsZero() {
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expireAt.Valid = true
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expireAt.Int64 = msg.ExpireAt.Unix()
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}
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return []any{msg.RoomID, msg.EventID, int64(msg.ExpireIn.Seconds()), expireAt}
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}
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func (msg *DisappearingMessage) Insert(ctx context.Context) error {
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return msg.qh.Exec(ctx, insertDisappearingMessageQuery, msg.sqlVariables()...)
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}
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func (msg *DisappearingMessage) StartExpirationTimer(ctx context.Context) error {
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msg.ExpireAt = time.Now().Add(msg.ExpireIn)
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return msg.qh.Exec(ctx, updateDisappearingMessageQuery, msg.EventID, msg.ExpireAt.Unix())
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}
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func (msg *DisappearingMessage) Delete(ctx context.Context) error {
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return msg.qh.Exec(ctx, deleteDisappearingMessageQuery, msg.EventID)
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}
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